If you fall in this hole, you're not coming out

A game about ritual combat. 4 players are thrown into a pit, and must push each other towards a hole in the centre, where a hungry demon dwells. As players are sacrificed to the demon, rain increases and the flow of water pushes players down the pit. The last surviving player is the winner.
Jam year: 
LEGO got it right
MS Windows
Tools and Technologies: 
Unity (any product)
Game Stills: